Fuel economy only comes when many separate systems operate properly. Fuel supply can never leak!!! Don't ever drive a car that you can smell fuel, we are out of the 1900's. Compression, brakes, alignment, transmission, electrical system and finally engine management. If everything else ok, the oxygen sensor operation needs to be verified. A flatline O2 will take 5 MPG or more ( chrysler will kill the car). The newer the ECM, the more control the O2 has.?
Richard Stratford
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On Monday, February 19, 2024 at 12:11:31 PM PST, Mike Langry <rmlangtry@...> wrote: